Line a large baking sheet with parchment paper or a silicone baking mat.
In a large bowl, whisk together the flour, water, olive oil, salt, garlic powder and onion powder until smooth. Set aside and let rest for 5 minutes.
Once oven is preheated, toss the cauliflower florets in the flour mixture until coated. Remove with a slotted spoon, shaking off any excess batter and spread out on the baking sheet in an even layer.
Roast until crispy and golden brown around the edges, about 20 to 25 minutes.
While cauliflower roasts, whisk together the hot sauce and coconut oil in a large bowl.
Once the cauliflower is out of the oven, immediately add it to the bowl with the hot sauce. Toss to coat, plate and serve while hot.
Notes
Storing: Cooled buffalo cauliflower bites can be stored in an airtight container in the refrigerator for up to three days though they will become soft over time. Freezing is not recommended.Reheating: If reheating buffalo cauliflower bites from the refrigerator, bake at 400°F for 15 minutes or until heated through and crispy around the edges. You can also reheat them in the air fryer.